If Chuck Hagel is confirmed as Secretary of Defense — and that’s a big IF — he’ll join a short list of prominent Republicans who agreed to join the president’s Cabinet in a Democratic administration. Here’s a sampling of some previous Republican Cabinet officials over the past century:

Secretary of Interior Harold Ickes appearing before the House Rivers and Harbors Committee to ask congressfor full control over the Bonneville Dam project in Oregon, Jul. 18, 1939, Washington, D.C.

Image 1 of 9 - GOP cabinet members in Democratic Administrations

Secretary of Interior Harold Ickes appearing before the House Rivers and Harbors Committee to ask congressfor full control over the Bonneville Dam project in Oregon, Jul. 18, 1939, Washington, D.C.

Secretary of Interior Harold Ickes appearing before the House Rivers...and Harbors Committee to ask congressfor full control over the...Bonneville Dam project in Oregon, Jul. 18, 1939, Washington, D.C.

Image 2 of 9|GOP cabinet members in Democratic Administrations

National Archives / Official U.S. Navy Photograph

Receives the congratulations of Secretary of the Navy Frank Knox, upon being presented with the Distinguished Service Medal in recognition of his service as Commandant of the Marine Corps from 1 December 1936 to 1 January 1944. The presentation took place in Secretary Knox' office on 12 April 1944. Looking on are Lieutenant General Alexander A. Vandegrift, Commandant of the Marine Corps (right) and Colonel James Roosevelt.

Image 2 of 9 - GOP cabinet members in Democratic Administrations

Receives the congratulations of Secretary of the Navy Frank Knox, upon being presented with the Distinguished Service Medal in recognition of his service as Commandant of the Marine Corps from 1 December 1936 to 1 January 1944. The presentation took place in Secretary Knox' office on 12 April 1944. Looking on are Lieutenant General Alexander A. Vandegrift, Commandant of the Marine Corps (right) and Colonel James Roosevelt.

Receives the congratulations of Secretary of the Navy Frank Knox, upon...being presented with the Distinguished Service Medal in recognition of...his service as Commandant of the Marine Corps from 1 December 1936 to...1 January 1944. The presentation took place in Secretary Knox' office...on 12 April 1944. Looking on are Lieutenant General Alexander A....Vandegrift, Commandant of the Marine Corps (right) and Colonel James...Roosevelt.

Image 3 of 9|GOP cabinet members in Democratic Administrations

National Archives

President Harry Truman and Secretary of War Henry Stimson, 1945.

Image 3 of 9 - GOP cabinet members in Democratic Administrations

President Harry Truman and Secretary of War Henry Stimson, 1945.

President Harry Truman and Secretary of War Henry Stimson, 1945.

Image 4 of 9|GOP cabinet members in Democratic Administrations

William J. Smith / AP Photo

President John F. Kennedy meets with officials from the Department of the Treasury and members of his staff at the winter White House in Palm Beach, Fla., Dec. 26, 1962, regarding his 1963 tax cut proposal. Left to right: Secretary of the Treasury Douglas Dillon; Pres. Kennedy; and presidential council advisor Theodore Sorensen.

Image 4 of 9 - GOP cabinet members in Democratic Administrations

President John F. Kennedy meets with officials from the Department of the Treasury and members of his staff at the winter White House in Palm Beach, Fla., Dec. 26, 1962, regarding his 1963 tax cut proposal. Left to right: Secretary of the Treasury Douglas Dillon; Pres. Kennedy; and presidential council advisor Theodore Sorensen.

President John F. Kennedy meets with officials from the Department of...the Treasury and members of his staff at the winter White House in...Palm Beach, Fla., Dec. 26, 1962, regarding his 1963 tax cut proposal. ...Left to right: Secretary of the Treasury Douglas Dillon; Pres....Kennedy; and presidential council advisor Theodore Sorensen.

Image 5 of 9|GOP cabinet members in Democratic Administrations

AP Photo

Robert McNamara, Former Defense Secretary

Image 5 of 9 - GOP cabinet members in Democratic Administrations

Robert McNamara, Former Defense Secretary

Robert McNamara, Former Defense Secretary

Image 6 of 9|GOP cabinet members in Democratic Administrations

Getty Images

James Schlesinger, right.

Image 6 of 9 - GOP cabinet members in Democratic Administrations

James Schlesinger, right.

James Schlesinger, right.

Image 7 of 9|GOP cabinet members in Democratic Administrations

Alex Brandon / AP Photo

William Cohen, left, member of the House Judiciary Committee during Watergate, speaks during an event sponsored by The Washington Post to commemorate the 40th anniversary of Watergate Monday, June 11, 2012 at the Watergate office building in Washington.

Image 7 of 9 - GOP cabinet members in Democratic Administrations

William Cohen, left, member of the House Judiciary Committee during Watergate, speaks during an event sponsored by The Washington Post to commemorate the 40th anniversary of Watergate Monday, June 11, 2012 at the Watergate office building in Washington.

William Cohen, left, member of the House Judiciary Committee during...Watergate, speaks during an event sponsored by The Washington Post to...commemorate the 40th anniversary of Watergate Monday, June 11, 2012 at...the Watergate office building in Washington.

Image 8 of 9|GOP cabinet members in Democratic Administrations

Charles Dharapak / AP Photo

Defense Secretary Robert Gates listens to a reporter's question during a news briefing about gays in the military Tuesday at the Pentagon.

Image 8 of 9 - GOP cabinet members in Democratic Administrations

Defense Secretary Robert Gates listens to a reporter's question during a news briefing about gays in the military Tuesday at the Pentagon.

Defense Secretary Robert Gates listens to a reporter's question during...a news briefing about gays in the military Tuesday at the Pentagon.

Image 9 of 9|GOP cabinet members in Democratic Administrations

Jeff Roberson / AP Photo

Transportation Secretary Ray LaHood speaks during a groundbreaking ceremony for a new Mississippi River bridge connecting Illinois and Missouri Monday, April 19, 2010, in St. Louis. Earlier, LaHood spoke to reporters about a $16.4 million fine Toyota Motor Corp. has agreed to pay for failing to properly notify U.S. authorities about a dangerous accelerator pedal defect.

Image 9 of 9 - GOP cabinet members in Democratic Administrations

Transportation Secretary Ray LaHood speaks during a groundbreaking ceremony for a new Mississippi River bridge connecting Illinois and Missouri Monday, April 19, 2010, in St. Louis. Earlier, LaHood spoke to reporters about a $16.4 million fine Toyota Motor Corp. has agreed to pay for failing to properly notify U.S. authorities about a dangerous accelerator pedal defect.

Transportation Secretary Ray LaHood speaks during a groundbreaking...ceremony for a new Mississippi River bridge connecting Illinois and...Missouri Monday, April 19, 2010, in St. Louis. Earlier, LaHood spoke...to reporters about a $16.4 million fine Toyota Motor Corp. has agreed...to pay for failing to properly notify U.S. authorities about a...dangerous accelerator pedal defect.